Figure F40. Photomicrographs of zeolites. Pl = plagioclase, Cpx = clinopyroxene. A-C. Stilbite is shown and is easily identified by the sheaflike aggregates and radiated masses (Sample 205-1253A-33R-1 [Piece 8B]; 550.52 mbsf; in cross-polarized light [XPL] in A and plane-polarized light [PPL] in B and C). D. Radiating fibrous aggregates of zeolites (Sample 205-1253A-20R-1 [Piece 1D]; 492.04 mbsf; PPL). E, F. Radiating and fibrous aggregates, probably mesolite or thomsonite (Sample 205-1253A-17R-2; 478.18 mbsf; PPL).

Figure F40. Photomicrographs of zeolites. Pl = plagioclase, Cpx = clinopyroxene. A-C. Stilbite is shown and is easily identified by the sheaflike aggregates and radiated masses (Sample 205-1253A-33R-1 [Piece 8B]; 550.52 mbsf; in cross-polarized light [XPL] in A and plane-polarized light [PPL] in B and C). D. Radiating fibrous aggregates of zeolites (Sample 205-1253A-20R-1 [Piece 1D]; 492.04 mbsf; PPL). E, F. Radiating and fibrous aggregates, probably mesolite or thomsonite (Sample 205-1253A-17R-2; 478.18 mbsf; PPL).